v3.26.3
Fair Value (Tables)
9 Months Ended
Sep. 30, 2026
Fair Value Disclosures [Abstract]  
Schedule of Fair value, by Balance Sheet Grouping
The following is a listing of our assets required to be measured at fair value on a recurring basis and where they are classified within the fair value hierarchy as of September 30, 2026 and December 31, 2025 (in millions):
September 30, 2026
Level 1Level 2Level 3Total
Assets
Cash equivalents$877 $14 $— $891 
Restricted cash equivalents74 — — 74 
Available-for-sale investment securities— 70 6 76 
December 31, 2025
Level 1Level 2Level 3Total
Assets
Cash equivalents$1,628 $18 $— $1,646 
Restricted cash equivalents72 — — 72 
Available-for-sale investment securities— 60 7 67 
Schedule of Debt Securities, Held-to-Maturity
The carrying value and estimated fair value of our held-to-maturity investment securities were as follows (in millions):
September 30, 2026December 31, 2025
Carrying ValueFair ValueCarrying ValueFair Value
Held-to-maturity investment securities$292 $289 $464 $464